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ADA4897-2:  1 nV/√Hz, Low Power Operational Amplifier

Product Details

Product Status:Recommended for New Designs

The ADA4897-2 is a unity gain stable, low noise, rail-to-rail output, high speed voltage feedback amplifier that has a quiescent current of 3 mA. With the 1/f noise of 2.4 nV/√Hz at 10 Hz and a spurious-free dynamic range of −80 dBc at 2 MHz, the ADA4897-2 is an ideal solution in a variety of applications, including ultrasound, low noise preamplifiers, and drivers of high performance ADCs. Analog Devices, Inc., proprietary next generation SiGe bipolar process and innovative architecture enables such a high performance amplifier.

TheADA4897-2 has 230 MHz bandwidth, 120 V/µs slew rate, and settle to 0.1% in 45 ns. With a wide supply voltage range (3 V to 10 V), the ADA4897-2/ADA4897-1 is an ideal candidatesfor systems that require high dynamic range, precision, and high speed.

The ADA4897-2 is available in an 10-lead MSOP package and operates over the extended industrial temperature range of −40°C to +125°C.

Applications

  • Low noise preamplifier
  • Ultrasound amplifiers
  • PLL Loop filters
  • High performance ADC drivers
  • DAC buffers

FEATURES and BENEFITS

  • Low wideband noise
    1 nV/√Hz
    2.8 pA/√Hz
  • Low 1/f noise
    2.4 nV/√Hz @ 10 Hz
  • Low distortion: −115 dBc @ 100 kHz, VOUT = 2 V p-p
  • Low power: 3 mA/amp
  • Low input offset voltage: 0.5 mV maximum
  • High speed
    230 MHz, −3 dB bandwidth (G = +1)
    120 V/µs slew rate
    45 ns settling time to 0.1%
  • Rail-to-rail output
  • Wide supply range: 3 V to 10 V
  • Output disable feature

Supports defense and aerospace applications (AQEC standard)

  • Download ADA4897-2-EP Data Sheet (pdf)
  • Extended industrial temperature range
    (−55°C to +125°C)
  • Controlled manufacturing baseline
  • 1 assembly/test site
  • 1 fabrication site
  • Enhanced product change notification
  • Qualification data available on request
  • V62/13614 DSCC Drawing Number

Similar Products

  • ADA4895-2: Low noise, rail-to-rail output, Dual, Gain>=10, Output Disable
  • ADA4896-2: Low power, rail-to-rail output, Dual
  • ADA4897-1: Unity gain stable, Single, Output Disable

Video: ADA4895 / 6 / 7 Fastest, Low Noise, Low Power, Rail-to-Rail Amps

Documentation

Title Content Type File Type
ADA4896-2/ADA4897-1/ADA4897-2: 1 nV/√Hz, Low Power, Rail-to-Rail Output Amplifiers Datasheet (Rev B, 04/2012) (PDF, 663 kB) Data Sheets PDF
ADA4897-1-EP/ADA4897-2-EP: 1 nV/√Hz, Low Power, Rail-to-Rail Output Amplifiers Data Sheet (Rev 0, 02/2013) (pdf, 355 kB) Data Sheets PDF
ADA4897-2-KGD: Low Distortion, High Speed Rail-to-Rail Input/Output Amplifier Known Good Die Data Sheet (Rev 0, 04/2014) (pdf, 203 kB) Data Sheets PDF
AN-0991: Active Filter Evaluation Board for Standard SOIC Op Amps  (pdf, 99 kB) Application Notes PDF
AN-581: Biasing and Decoupling Op Amps in Single Supply Applications  (pdf, 166 kB) Application Notes PDF
AN-402: Replacing Output Clamping Op Amps with Input Clamping Amps  (pdf, 55 kB)
So far most clamping amplifiers have relied upon an output clamping architecture and are called output clamp amps (OCAs). A new architecture called an input clamp amp (ICA) offers superior clamping accuracy and lower distortion.
Application Notes PDF
CN0332: Magnetoresistive (MR) Rotational Speed Sensor  (pdf, 320 kB) Circuit Note PDF
CN0277: High-Precision, 18-Bit, 5 MSPS, Low Power Data Acquisition Signal-Chain  (pdf, 220 kB) Circuit Note PDF
A 16-Bit, 6 MSPS SAR ADC System with Low Power Input Drivers and Reference Optimized for Multiplexed Applications  (pdf, 457 kB) Circuit Note PDF
ADA4895 / 6 / 7 Fastest, Low Noise, Low Power, Rail-to-Rail Amps
The ADA4895, ADA4896, ADA4897; the newest family of high-speed, rail-to-rail amplifiers w/ low voltage noise (1nV/√Hz), low power (3mA) and high slew rate. Applications include low noise pre-amps for photo-detectors & driving high performance ADCs.
Videos HTML
Op Amp Applications Handbook Design Handbooks HTML
MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps  (pdf, 62 kB) Tutorials PDF
MT-059: Compensating for the Effects of Input Capacitance on VFB and CFB Op Amps Used in Current-to-Voltage Converters  (pdf, 69 kB) Tutorials PDF
MT-058: Effects of Feedback Capacitance on VFB and CFB Op Amps  (pdf, 66 kB) Tutorials PDF
MT-056: High Speed Voltage Feedback Op Amps  (pdf, 109 kB) Tutorials PDF
MT-053: Op Amp Distortion: HD, THD, THD + N, IMD, SFDR, MTPR  (pdf, 104 kB) Tutorials PDF
MT-052: Op Amp Noise Figure: Don't Be Misled  (pdf, 60 kB) Tutorials PDF
MT-050: Op Amp Total Output Noise Calculations for Second-Order System  (pdf, 38 kB) Tutorials PDF
MT-049: Op Amp Total Output Noise Calculations for Single-Pole System  (pdf, 40 kB) Tutorials PDF
MT-048: Op Amp Noise Relationships: 1/f Noise, RMS Noise, and Equivalent Noise Bandwidth  (pdf, 81 kB) Tutorials PDF
MT-047: Op Amp Noise  (pdf, 72 kB) Tutorials PDF
MT-033: Voltage Feedback Op Amp Gain and Bandwidth  (pdf, 251 kB) Tutorials PDF
MT-032: Ideal Voltage Feedback (VFB) Op Amp  (pdf, 65 kB) Tutorials PDF
SAR ADC & Driver Quick-Match Guide  (pdf, 251 kB)
Find drivers for ADI's most popular single-ended and differential SAR ADCs based on your specific application conditions.
Product Selection Guide PDF
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADA4896 SPICE Macro Model SPICE Models HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

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Price, packaging, availability

ADA4897-2 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADA4897-2-KGD Status: Production CHIPS OR DIE 0 Tray, 396 - - Y  Material Info Notify Me Contact ADI
ADA4897-2ARMZ Status: Production 10 ld MSOP 10 Ind Tube, 50 $3.86 $3.21 Y  Material Info Notify Me Purchase
ADA4897-2ARMZ-R7 Status: Production 10 ld MSOP 10 Ind Reel, 1000 - $3.21 Y  Material Info Notify Me Purchase
ADA4897-2ARMZ-RL Status: Production 10 ld MSOP 10 Ind Reel, 3000 - $3.21 Y  Material Info Notify Me Purchase
ADA4897-2TRMZ-EP Status: Production 10 ld MSOP 10 Tube, 50 $7.72 $6.42 Y  Material Info Notify Me Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADA4897-2 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADA4897-2ARM-EBZ Status: Production 10-Lead Bare Evaluation Board $18.25 Yes -
ADA4897-2ARMZ Status: Production 10-Lead MSOP $5.14 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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